Fifth-wheel



(NoMode1.)-

P. L. P. EZELL.

FIFTH WHEEL;

No. 262,386. Patented Aug. 8, 1882.

WITNESSES ATTORNEYS. V

NITE TATES PATENT OFFICE.

FRANCIS L. F. EZELL, OF NASHVILLE, TENNESSEE.

FIFTH-WHEEL.

SPECIFICATION forming part of Letters Patent No. 262,356, dated August 8, 1882.

Application filed May 29, 1882.

To all whom it may concern:

Be it known that I, FRANoIs LA F. EZELL, of Nashville, in the county of Davidson and State of Tennessee, have invented certain new and useful Improvements in Fifth-WVheels for Vehicles; and I do hereby declare that the following isai'ull,clear, and exactdescription oftheinvention,whichwillenable others skilledin theart to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification, and in which- Figure 1 is a longitudinal vertical section of my improved fifth-wheel and its appurtenances. Fig. 2 is a vertical cross-section of the same at right angles to Fig.1. Fig. 3 is a detail plan view of the under side ofthe flanged and lipped top plate, A; and Fig. 4: is a similar view of the top of the bearingplate F.

Similar letters of reference indicate corresponding parts in all the figures. My intention has relation to the fifth-wheel of vehicles; and it consists in certain improvements in the construction and combination of parts of the fifth-wheel for which Letters Patent of the United States No. 254,295 were granted to me on the 28th day of February, 1882, which said improvements will be hereinafter more fully described and claimed.

In the annexed drawings, A represents the spring-seat, which is made of steel or malleable iron, and slightly curved or concaved on its top to fit the spring B. The lower part of the spring-seat is of circular shape, forming a disk, A, which has an annular downwardlyextending rim or flange, a, which is provided with opposite projecting lips or cars, a: so, (see Figs. 1 and 3,) projecting inwardly under the rim of the bearing-plate F. Said part A A is cast with a hollow center or oil-chamber, b, in the bottom of which is a central aperture, 11 for feeding the lubricant to the wearing-surfaces below. Oil (or other lubricating material) may be fed into chamber 1) through a channel or inlet, 1), at its upper end.

(No model.)

The part or disk F has a central cylindrical bore or recess to fit the downwardly-extending king-bolt D, the head of which projects up into the space or recess in disk A underneath the oil-chamber b. Said bore is encircled by a 001- led in this manner it will be seen thatthe two parts are securely interlocked independently of the king-bolt D, the lips 00 at preventing rocking or careening of disk A upon its bearing-plateF. Bythisconstructionitisn0trequisite that the king-bolt D shall pass through the upper part, A A, and thus I am enabled to make the oil-chamber I) in said part witha solid iron bottom, having only the central seep-hole or feed-hole, b

Having thus described my invention, I claim and desire to secure by Letters Patent of the United States The combination ofthe circular disk A, having flange a, provided with the inwardly-projecting lips 00 ac, and cast in one piece with the 7 spring-seat A, having central oil-chamber, I), provided with the inlet 11 and central bottom aperture, b and provided with the central recess, G, below the oil-chamber, circular bearing-plate F, having gaps or notches 22 and cen- 8o tral collar, 0, and king-bolt D,constructed and combined substantially as and for the purpose herein shown and described.

In testimony thatI claim the foregoing as my own I have hereunto affixed my signature in presence of two witnesses.

FRANCIS LA FAYETTE EZELL. Witnesses:

JOSEPH W. BIG-LEY, FRANCIS BAKER. 

